Help with zen 170 dome port II

Good morning.

I would like to set up a configuration to use the oly 7-14 and the 12-40 pro.

My nauticam dealer sent me a quote with this:

N120 180mm Optical Glass Wide Angle Port................1189,38€

N120 Extension Ring 10 with Screws..............................135,93€

N85 to N120 55mm Port Adaptor...................................475,75€

O1240-Z Zoom Gear.......................................................226,55€

O714-Z Zoom Gear.........................................................226,55€

Now, I see in a USA store(bluephotostore), they sell a zen dome 170mm II, they say it is compatible with both lens, and if I understand correctly it is N85.

Do you know if I buy this dome I can mount both lens only buying O1240-Z Zoom Gear and O714-Z Zoom Gear?

Many thanks

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